/*
 * Copyright 2024 LinQingYing. and contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of this source code is governed by the Apache License 2.0,
 * which allows users to freely use, modify, and distribute the code,
 * provided they adhere to the terms of the license.
 *
 * The software is provided "as-is", and the authors are not responsible for
 * any damages or issues arising from its use.
 *
 */
package org.cangnova.cangjie.ide.formatter

import com.intellij.formatting.Alignment
import com.intellij.formatting.alignment.AlignmentStrategy
import com.intellij.lang.ASTNode

abstract class NodeAlignmentStrategy : CommonAlignmentStrategy() {
    public abstract override fun getAlignment(node: ASTNode): Alignment?

    private class AlignmentStrategyWrapper(private val internalStrategy: AlignmentStrategy) : NodeAlignmentStrategy() {
        override fun getAlignment(node: ASTNode): Alignment? {
            val parent = node.getTreeParent()
            if (parent != null) {
                return internalStrategy.getAlignment(parent.getElementType(), node.getElementType())
            }

            return internalStrategy.getAlignment(node.getElementType())
        }
    }

    companion object {
        val nullStrategy: NodeAlignmentStrategy = fromTypes(AlignmentStrategy.wrap(null))


        fun fromTypes(strategy: AlignmentStrategy): NodeAlignmentStrategy {
            return AlignmentStrategyWrapper(strategy)
        }
    }
}
